ITPEC IP October 2024 Question 14
ITPEC IP October 2024 — Question 14 of 100
Mirroring stores the same data on both HDDs, so either one can provide the data if the other fails. This is the basic behavior of RAID 1. Every write is duplicated, usable capacity is approximately that of one drive, and availability is maintained after a single-drive failure while the surviving copy remains readable.
Answer (d)
Why not others:
- (a) Striping spreads data across drives for performance but, without redundancy, loss of either drive can destroy the dataset
- (b) Data mining extracts patterns from accumulated data
- (c) Tethering shares one device's network connection with another
Key rule: Mirroring duplicates data for redundancy; striping distributes data for throughput and requires an additional redundancy scheme to tolerate failure.
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